Arc and Natal are a good opportunity for Nintendo?

[M.U.G.E.N]

Personally I think many companies that made 'good' games exclusive for Wii and had miserable sales on it will now on make them for the Arc AND the wii....so I think it's a win win for all :) What Wii can learn from them depends on what Arc and Natal do so it's hard to guess atm.... but good competition = better results always